package com.tanhua.server.service;

import com.tanhua.autoconfig.template.HuanXinTemplate;
import com.tanhua.autoconfig.template.SmsTemplate;
import com.tanhua.commons.utils.Constants;
import com.tanhua.commons.utils.JwtUtils;
import com.tanhua.dubbo.api.UserApi;
import com.tanhua.model.domain.User;
import com.tanhua.model.vo.ErrorResult;
import com.tanhua.server.exception.BusinessException;
import org.apache.commons.codec.digest.DigestUtils;
import org.apache.commons.lang.StringUtils;
import org.apache.dubbo.config.annotation.DubboReference;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Service;

import java.time.Duration;
import java.util.HashMap;
import java.util.Map;

@Service
public class UserService {
    // 注入发送短信的工具类
    @Autowired
    private SmsTemplate template;

    // 注入redis的工具类
    @Autowired
    private RedisTemplate<String,String> redisTemplate;

    @DubboReference
    private UserApi userApi;

    @Autowired
    private HuanXinTemplate huanXinTemplate;

    /**
     * 发送手机验证码
     * @param phone
     * 响应,可以指定响应状态码和内容  ResponseEntity
     */
    public ResponseEntity sendMsg(String phone) {
        // 1:通过工具类随机生成6位验证码
        /*String code = RandomStringUtils.randomNumeric(6);
        System.out.println("code = " + code);*/
        String code = "123456";
        // 2:调用template对象,发送手机短信
        //template.sendSms(phone,code);
        // 3:将生成的验证码存入到Redis当中
        redisTemplate.opsForValue().set("CHECK_CODE_"+phone,code, Duration.ofMinutes(5));

        return ResponseEntity.ok(null);
    }

    /**
     * 验证登录
     * @param phone
     * @param code
     */
    public Map loginVerification(String phone,String code) {
        // 1:从redis中获取下发的验证码
        String redisCode = redisTemplate.opsForValue().get("CHECK_CODE_" + phone);
        // 2:对验证码进行校验 (验证码是否存在,是否和输入的验证码一致)
        if (StringUtils.isEmpty(redisCode) || !redisCode.equals(code)){
            // 验证码无效
            throw new BusinessException(ErrorResult.loginError());
        }
        // 3:删除redis中的验证码
        redisTemplate.delete("CHECK_CODE_" + phone);
        // 4:通过手机号码查询用户
        User user = userApi.findByMobile(phone);
        boolean isNew = false;
        // 5:如果用户不存在,创建用户保存到数据中去
        if (user == null){
            user = new User();
            user.setMobile(phone);
            user.setPassword(DigestUtils.md5Hex("123456"));
//            user.setCreated(new Date());
//            user.setUpdated(new Date());
            Long userId = userApi.save(user);
            user.setId(userId);
            isNew = true;

            // 注册环信用户
            String hxUser = "hx" + user.getId();
            Boolean create = huanXinTemplate.createUser(hxUser, Constants.INIT_PASSWORD);
            // 判断是否将用户注册到环信中了,更新用户
            if (create){
                user.setHxUser(hxUser);
                user.setHxPassword(Constants.INIT_PASSWORD);
                userApi.update(user);
            }
        }
        // 6:通过JWT生成token(存入id和手机号码)
        Map tokenMap = new HashMap();
        tokenMap.put("id",user.getId());
        tokenMap.put("mobile",phone);
        String token = JwtUtils.getToken(tokenMap);

        // 7:构造返回值
        Map retMap = new HashMap();
        retMap.put("token",token);
        retMap.put("isNew",isNew);

        return retMap;
    }
}
